Perfectionnements apportés aux écrans de projection,申请号FRD824185-传众专利搜索

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发明名称	Perfectionnements apportés aux écrans de projection
摘要
申请公布号	FR824185(A)	申请公布日期	1938.02.02
申请号	FRD824185	申请日期	1937.07.09
申请人		发明人	LESLIE STABLEFORD JOHN,
分类号	G03B21/56	主分类号	G03B21/56
代理机构		代理人
主权项
地址

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